@ponzstraggler for the yuri stuff I couldn't even tell where the implied sex was at. For others I can say with confidence that the whole reason you can't see the penis in the vagina is because the penis is too small and having a big woman is usually the point of those works. At most I can only see the argument for #625043|Rimu to "Ramune" to "27cm" | Rimu, Ramu…|15,786 and even then one could make the argument that it's just the opposite of the previous case, but if you take just a few pages out of context I can see the argument for the tag, it's just not strong enough. Like I think the tag should apply to the entire work, if it's like one page, but on the next you clearly see the sex, then I think it's pointless. Like now that you showed some examples I remember one myself #398234|Jibun de Tsukutta Ero Trap Dungeon no S…|4,124 (specifically page [81]. And the whole point is that you just can't see whether he's fucking her pussy or ass. That doesn't mean it's implied sex, it just showing a different angle where you can't see the penis. "Implied" usually means something subtle
I'm actually very curious, can you post an example of such works where it happens (or more like it's implied it happens)? I don't think I've ever come across anything like that
Just because a tag like "hidden sex" is in a hentai does not mean they'll be playing fucking hide and seek the entire time. "Implied sex" is just something that happens often in hentai, and happens to be a specific fetish for lots of people. There's a reason why some people prefer clothed sex rather than just tits and ass being openly laid out.
I know there's like a similiar thing on VNDB, but this is a hentai site for fuck's sake. Why the heck would they not show the sexual intercourse in a hentai?